Lub cover system ntawm tus neeg

Lub cover system ntawm tus neeg - lub cev uas tsim lub puab thiab txheej tiv thaiv plhaub ntawm nws lub cev. Qhov loj tshaj plaws ntawm tib neeg lub nruab nrog muaj ib tug kuj ceeb tias txoj kev teeb tsa.

Txheej System Rights: qauv thiab muaj nuj nqi

Tawv - txheej cev txheej, uas tiv thaiv nws los ntawm dej poob, kab mob thiab cov neeg kho tshuab poob siab. Lub cheeb tsam ntawm qhov chaw nyob rau hauv nruab nrab ntawm 1.7 m ^2. Tawv - tsis yog tus ciam nkauj nraug nrog thiab lwm ib puag ncig, nws yog ib tug tag nrho lub cev. Los ntawm nws kom tau hauj lwm nyob rau tib neeg lub neej thiab noj qab haus huv.

Tus qauv ntawm daim tawv nqaij

Lub epidermis - tus thawj txheej txheej ntawm daim tawv nqaij. Nws muaj ib tug multilayered epithelium. Lub sab hauv ntawm lub hlwb ntawm lub epithelium yog lossi faib thiab multiply, thiab lwm - coarsen thiab lub caij nplooj zeeg. Qhov no tus txheej txheem yog tas mus li, ua rau ib tug tag nrho daim ntawv rov ntxiv ntawm cov stratum corneum txhua txhua lub lim tiam. Cov xim melanin los ntawm lub puab txheej ntawm lub epidermis txiav txim xim nqaij tawv.

Lub epidermis yog lub dermis yog bordered los ntawm ib tug nyias phaj - hauv qab daus daim nyias nyias. Sab nraud papillary txheej ntaub ntawv ib tug pom protrusion thiab notch ntawm daim tawv nqaij. Muaj qhov qog los ntawm uas cov hws ntws los ntawm lub grooves thiab moisturizes ntawm daim tawv nqaij. Nws yog los ntawm lub dermis lub yuav tsum vov system ntawm tus tib neeg daim ntawv nyob rau hauv xib teg thiab qab xib taws ntawm tus taw ntawm ib tug neeg daim duab, uas yog tsis pheej rov qab ua thiab tsis hloov lub sij hawm.

Rau ib tug elastic, saj zawg zog thiab tuab daim tawv nqaij teb mesh txheej uas muaj bundles ntawm elastin, collagen thiab cov nqaij fibers. Qhov no txheej ntawm daim tawv nqaij thiab cov plaub hau keeb kwm yog nyob qog (sebaceous thiab hws).

Subcutaneous cov ntaub so ntswg - xoob connective cov ntaub so ntswg uas muaj muaj roj deposits. Lawv ntim nyob ntawm ntau yam tseem ceeb:

• muaj hnub nyoog;
• pem teb;
• kev kab mob;
• caj;
• txoj kev ua neej;
• noj cov zaub mov;
• ib ce muaj zog.

Subcutaneous cov ntaub so ntswg nrog fatty cov ntaub so ntswg pluag neeg xyuas pib ntawm tshav kub, yog li nws yog heev nyias cov neeg yog cia kom khov nquag tag nrho.

tsis pub leejtwg paub caj pas

Hws, mis nyuj thiab sebaceous qog - yog derivatives ntawm daim tawv nqaij. Txheej System yuav muaj txog li 3 lab. Hws qog! Nyob rau hauv tej yam kev mob, lawv ua me ntsis ntau tshaj ib nrab ntawm ib liter ntawm hws, nyob rau ntawm ib kom kub, tus txheej los yog active lub cev ua hauj lwm - mus rau 3. Dej ua li feem ntau ntawm cov hws (98%), cov seem 2% - ammonia, urea, ntsev, uric acid, thiab li ntawd.

Lub sebaceous qog yog faib nyob yuav luag tag nrho saum npoo ntawm lub cev tib neeg uas tsis yog tus txhais qab xib taw thiab lub xib teg. Tshwj xeeb yog high concentration nyob rau hauv lub cheeb tsam ntawm lub ntsej muag thiab lub taub hau. Ducts ntawm sebum tso zis, muaj raws ntawm ciab, roj thiab hydrocarbon ncaj qha mus rau hauv lub hauv paus plaub hau.

Nails thiab cov plaub hau

Nails - tshwj xeeb tshaj yog cov epidermal hlwb tsim nyob rau hauv ib tug khoom phaj uas tiv thaiv lub kawg ntawm cov ntiv tes nyob rau hauv lub ob txhais tes thiab ob txhais taw. Lawv loj hlob maj mam, thiab tus nqi tsis hloov thoob plaws hauv lub neej. Uniform liab ntsia thawv xim hais txog nws zoo noj haus thiab cov ntshav mov. Hloov cov xim yuav tsum rov xyuas nws txhua txhua hnub ntawv qhia zaub mov, txhawb nws nrog cov vitamins thiab minerals.

Cov plaub hau npog lub feem ntau yooj yim qhov chaw ntawm tib neeg lub cev keratinous fibers epidermal hlwb. Cov plaub hau muaj lub paj hlwb, cortex thiab plhaub. Lub cortical txheej nteg pigments lub luag hauj lwm rau cov Hawj txawm cov plaub hau. Hauv paus plaub hau uas muaj cov keeb kwm yog tog mus tob rau mus rau hauv lub dermis. Tag nrho cov hauv paus plaub hau yog tsim nyob rau hauv lub tsev menyuam. Tshiab qhov muag teev nyob hauv tus txheej txheem ntawm lub neej tsim. Tus txheej txheem ntawm cov plaub hau kev loj hlob volnoobrazen. Active txoj kev loj hlob theem yog hloov nrog kev thaj yeeb thiab vice versa. Qhov nruab nrab txoj kev loj hlob nqi ntawm ib tug tib neeg plaub hau - 0.1-0.3 hli ib hnub twg.

Lub ntsiab muaj nuj nqi ntawm daim tawv nqaij thiab nws cov derivatives

Nws yog ntawm no lub receptors lub luag hauj lwm rau qhov kev txiav txim ntawm kov thiab lwm yam teb zog.

1. Tiv thaiv - cov thawj thiab thawj muaj nuj nqi rau cov uas tag nrho cov kev khiav dej num ntawm tib neeg integumentary system. Cov koom haum kaw los ntawm tej sab nraud tej yam raws li ib tug ntaub thaiv npog. Lub paj txoj nyob rau hauv daim tawv nqaij yog ceeb toom ntawm qhov kev nyab xeeb. Lawv yuam kom peb rub sharply tom qab kov ib tug txhais tes mus rau boiling dej. Mechanoreceptors rhiab rau kov, siab thiab kev co. Thermoreceptors tiv thaiv peb ntawm hypothermia thiab frostbite. Nociceptors yog lub luag hauj lwm rau qhov mob. Adipose cov ntaub so ntswg tiv thaiv hauv nruab nrog cev los ntawm cov neeg kho tshuab kev puas tsuaj. Melanin yog tsim nyob rau hauv lub basal txheej ntawm daim tawv nqaij los ntawm ultraviolet lub teeb, tiv thaiv lub deepest lug ntawm daim tawv nqaij.
2. Thermal. Kev them nyiaj yug zoo lub cev kub yog nqa tawm ib tug plurality ntawm paths log: tawm hws, constriction thiab dilation ntawm cov hlab ntsha, txuam rog txheej, gooseflesh.
3. Soaking. Integumentary system muaj lub peev xwm mus nqus dej. Ntau yam tshuaj nyob rau hauv daim ntawv ntawm cov molecules yog muaj nyob rau hauv lub epidermis thiab nkag mus rau hauv cov hlab ntsha nyob rau hauv lub neeg cov ntshav. Vim li no cov tseem cov neeg nquag siv lub cream, tshuaj kua, qhov ncauj qhov ntswg, balms.
4. Rho tawm. Feem ntau, lub cev xav tau kev pab rau urgently tau tshem ntawm undesirable tshuaj, nyob rau hauv uas nws yuav pab rau cov tib neeg integumentary system. Sekretivnye tub ceev xwm yuav thim lawv los ntawm lub cev mus rau qhov chaw ntawm lub epidermis nrog hws. Ib tug sebum muaj kua los ntawm lub sebaceous qog, moisturizes thiab lubricates daim tawv nqaij thiab cov plaub hau, koom tes nws noj qab nyob zoo tsos.
5. Qhuav ntawm vitamin D. Nws yog tsim nyob rau hauv qhov kev txiav txim ntawm tshav ntuj ntawm daim tawv nqaij, cov hlab ntsha mus rau hauv cov hlab ntsha. Vitamin D yog tsim nyog rau lub cev kom muaj lub cev tau hauj lwm ntawm lub skeletal system. Nws yuav pab calcium absorbed los ntawm lub cev nyob rau hauv txaus qhov ntau. Muaj zog cov pob txha - lub hauv paus ntawm tej lub cev noj qab.

Lub cover system ntawm tus neeg - lub hnub nyoog nta

Qhov tseem ceeb uas muaj hnub nyoog feature ntawm tib neeg - los hloov cov plaub hau xim mus rau lub teeb. Qhov no yog vim lub fact tias cov muaj hnub nyoog, cov plaub hau follicle ua melanin nyob rau hauv me me nyiaj. Tus thawj yog cov plaub hau dawb rau nws lub tuam tsev, lub grey plaub hau maj kis tau thoob lub taub hau, thiab ces thoob plaws hauv lub cev. Tsis tshuaj, vitamins, pab tsis tau kom txhob muaj cov txheej txheem yog hais tias nws yog twb khiav.

Nrog cov tsos ntawm tus ntsia thawv kuj txawv lub sij hawm. Lawv tsis tau lawv lub transparency thiab elasticity thiab ua txhav, nkig thiab npub.

Tom qab 30 xyoo, tag nrho cov lug ntawm daim tawv nqaij yog hloov:

• tawg elastic fibers;
• muaj dryness, zoo nkaus li ceev ceev;
• wrinkles ua ntxaum thiab pom;
• daim tawv nqaij yog ntau me thiab chim siab.

Lub cover system yog hloov ib zaug, nws yog ib tug ntev physiological, uas yog irreversible. Koj muaj peev xwm ib ntus muab ncua tseg nws lwm ces, ua tib zoo saib xyuas ntawm koj cov tawv nqaij:

• Tsis txhob ncaj qha tshav ntuj;
• tsis da dej ntev ntev;
• tsis siv kev hmoov, tonal kev pab;
• moisturize lub epidermis cream, tonics, muab tshuaj pleev, qhov ncauj qhov ntswg.

Ces koj cov tawv nqaij yuav ua tau ntau ntev mus thov lawv noj qab nyob zoo thiab flowering hom.